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<script type="text/javascript" src="../../../scripts/main.js"></script>        <div class="main-content" id="content" pageIds="BRV::com.drake.brv.listener/ItemDifferCallback///PointingToDeclaration//-900954490">
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            <div class="breadcrumbs"><a href="../../../index.html">BRV</a>/<a href="../index.html">com.drake.brv.listener</a>/<a href="index.html">ItemDifferCallback</a></div>
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            <h1 class="cover"><span>Item</span><wbr></wbr><span>Differ</span><wbr></wbr><span>Callback</span></h1>
            <div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":brv:dokkaHtml/release"><div class="symbol monospace">interface <a href="index.html">ItemDifferCallback</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><p class="paragraph">数据对比默认使用<code>equals</code>函数对比, 你可以为数据手动实现equals函数来修改对比逻辑. 推荐定义数据为 data class, 因其会根据构造参数自动生成equals</p></div></div>
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            <div class="tabs-section" tabs-section="tabs-section"><button class="section-tab" data-active="" data-togglable="Types">Types</button><button class="section-tab" data-togglable="Functions">Functions</button><button class="section-tab" data-togglable="Inheritors">Inheritors</button></div>
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              <h2 class="">Types</h2>
              <div class="table" data-togglable="Types"><a data-name="-1486870961%2FClasslikes%2F-900954490" anchor-label="DEFAULT" id="-1486870961%2FClasslikes%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>
                <div class="table-row" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release">
                  <div class="main-subrow keyValue ">
                    <div class=""><span class="inline-flex"><a href="-d-e-f-a-u-l-t/index.html">DEFAULT</a><span class="anchor-wrapper"><span class="anchor-icon" pointing-to="-1486870961%2FClasslikes%2F-900954490"></span>
                          <div class="copy-popup-wrapper "><span class="copy-popup-icon"></span><span>Link copied to clipboard</span></div>
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                      <div class="title"><div class="divergent-group" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release"><div class="with-platform-tags"><span class="pull-right"></span></div>

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    <div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":brv:dokkaHtml/release"><div class="symbol monospace">object <a href="-d-e-f-a-u-l-t/index.html">DEFAULT</a> : <a href="index.html">ItemDifferCallback</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></div></div>
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              <h2 class="">Functions</h2>
              <div class="table" data-togglable="Functions"><a data-name="-1479505941%2FFunctions%2F-900954490" anchor-label="areContentsTheSame" id="-1479505941%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>
                <div class="table-row" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release">
                  <div class="main-subrow keyValue ">
                    <div class=""><span class="inline-flex"><a href="are-contents-the-same.html">areContentsTheSame</a><span class="anchor-wrapper"><span class="anchor-icon" pointing-to="-1479505941%2FFunctions%2F-900954490"></span>
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                      <div class="title"><div class="divergent-group" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release"><div class="with-platform-tags"><span class="pull-right"></span></div>

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    <div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":brv:dokkaHtml/release"><div class="symbol monospace">open fun <a href="are-contents-the-same.html">areContentsTheSame</a>(oldItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>, newItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>): <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></div></div>
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<a data-name="-1479505941%2FFunctions%2F-900954490" anchor-label="areContentsTheSame" id="-1479505941%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a><div class="brief "><a data-name="-1479505941%2FFunctions%2F-900954490" anchor-label="areContentsTheSame" id="-1479505941%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>检查新旧数据内容是否相等 例如同一个对象, 但是其属性发生变化需要触发RecyclerView更新列表时应当该方法返回true该方法只有在<a href="are-items-the-same.html">areItemsTheSame</a>返回true时才会调用</div></div>
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<a data-name="1077472301%2FFunctions%2F-900954490" anchor-label="areItemsTheSame" id="1077472301%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>
                <div class="table-row" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release">
                  <div class="main-subrow keyValue ">
                    <div class=""><span class="inline-flex"><a href="are-items-the-same.html">areItemsTheSame</a><span class="anchor-wrapper"><span class="anchor-icon" pointing-to="1077472301%2FFunctions%2F-900954490"></span>
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                      <div class="title"><div class="divergent-group" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release"><div class="with-platform-tags"><span class="pull-right"></span></div>

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    <div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":brv:dokkaHtml/release"><div class="symbol monospace">open fun <a href="are-items-the-same.html">areItemsTheSame</a>(oldItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>, newItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>): <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></div></div>
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<a data-name="1077472301%2FFunctions%2F-900954490" anchor-label="areItemsTheSame" id="1077472301%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a><div class="brief "><a data-name="1077472301%2FFunctions%2F-900954490" anchor-label="areItemsTheSame" id="1077472301%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>判断新旧数据是否相等</div></div>
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<a data-name="-2043872598%2FFunctions%2F-900954490" anchor-label="getChangePayload" id="-2043872598%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>
                <div class="table-row" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release">
                  <div class="main-subrow keyValue ">
                    <div class=""><span class="inline-flex"><a href="get-change-payload.html">getChangePayload</a><span class="anchor-wrapper"><span class="anchor-icon" pointing-to="-2043872598%2FFunctions%2F-900954490"></span>
                          <div class="copy-popup-wrapper "><span class="copy-popup-icon"></span><span>Link copied to clipboard</span></div>
                        </span></span></div>
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                      <div class="title"><div class="divergent-group" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release"><div class="with-platform-tags"><span class="pull-right"></span></div>

  <div>
    <div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":brv:dokkaHtml/release"><div class="symbol monospace">open fun <a href="get-change-payload.html">getChangePayload</a>(oldItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>, newItem: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>): <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html">Any</a>?<span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></div></div>
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<a data-name="-2043872598%2FFunctions%2F-900954490" anchor-label="getChangePayload" id="-2043872598%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a><div class="brief "><a data-name="-2043872598%2FFunctions%2F-900954490" anchor-label="getChangePayload" id="-2043872598%2FFunctions%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>当 <a href="are-items-the-same.html">areItemsTheSame</a> 返回true, <a href="are-contents-the-same.html">areContentsTheSame</a> 返回false时, 调用该方法 该方法将返回一个用于更新的数据对象</div></div>
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              <h2 class="">Inheritors</h2>
              <div class="table" data-togglable="Inheritors"><a data-name="-1486870961%2FInheritors%2F-900954490" anchor-label="ItemDifferCallback" id="-1486870961%2FInheritors%2F-900954490" data-filterable-set=":brv:dokkaHtml/release"></a>
                <div class="table-row" data-filterable-current=":brv:dokkaHtml/release" data-filterable-set=":brv:dokkaHtml/release">
                  <div class="main-subrow keyValue ">
                    <div class=""><span class="inline-flex"><a href="-d-e-f-a-u-l-t/index.html">ItemDifferCallback</a><span class="anchor-wrapper"><span class="anchor-icon" pointing-to="-1486870961%2FInheritors%2F-900954490"></span>
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